1/*
  2 *  LILLY-1131 development board support
  3 *
  4 *    Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
  5 *
  6 *  based on code for other MX31 boards,
  7 *
  8 *    Copyright 2005-2007 Freescale Semiconductor
  9 *    Copyright (c) 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
 10 *    Copyright (C) 2009 Valentin Longchamp, EPFL Mobots group
 11 *
 12 * This program is free software; you can redistribute it and/or modify
 13 * it under the terms of the GNU General Public License as published by
 14 * the Free Software Foundation; either version 2 of the License, or
 15 * (at your option) any later version.
 16 *
 17 * This program is distributed in the hope that it will be useful,
 18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 20 * GNU General Public License for more details.
 21 */
 22
 23#include <linux/kernel.h>
 24#include <linux/types.h>
 25#include <linux/init.h>
 26#include <linux/gpio.h>
 27#include <linux/platform_device.h>
 28
 29#include <asm/mach-types.h>
 30#include <asm/mach/arch.h>
 31#include <asm/mach/map.h>
 32
 33#include "board-mx31lilly.h"
 34#include "common.h"
 35#include "devices-imx31.h"
 36#include "hardware.h"
 37#include "iomux-mx3.h"
 38
 39/*
 40 * This file contains board-specific initialization routines for the
 41 * LILLY-1131 development board. If you design an own baseboard for the
 42 * module, use this file as base for support code.
 43 */
 44
 45static unsigned int lilly_db_board_pins[] __initdata = {
 46	MX31_PIN_CTS1__CTS1,
 47	MX31_PIN_RTS1__RTS1,
 48	MX31_PIN_TXD1__TXD1,
 49	MX31_PIN_RXD1__RXD1,
 50	MX31_PIN_CTS2__CTS2,
 51	MX31_PIN_RTS2__RTS2,
 52	MX31_PIN_TXD2__TXD2,
 53	MX31_PIN_RXD2__RXD2,
 54	MX31_PIN_CSPI3_MOSI__RXD3,
 55	MX31_PIN_CSPI3_MISO__TXD3,
 56	MX31_PIN_CSPI3_SCLK__RTS3,
 57	MX31_PIN_CSPI3_SPI_RDY__CTS3,
 58	MX31_PIN_SD1_DATA3__SD1_DATA3,
 59	MX31_PIN_SD1_DATA2__SD1_DATA2,
 60	MX31_PIN_SD1_DATA1__SD1_DATA1,
 61	MX31_PIN_SD1_DATA0__SD1_DATA0,
 62	MX31_PIN_SD1_CLK__SD1_CLK,
 63	MX31_PIN_SD1_CMD__SD1_CMD,
 64	MX31_PIN_LD0__LD0,
 65	MX31_PIN_LD1__LD1,
 66	MX31_PIN_LD2__LD2,
 67	MX31_PIN_LD3__LD3,
 68	MX31_PIN_LD4__LD4,
 69	MX31_PIN_LD5__LD5,
 70	MX31_PIN_LD6__LD6,
 71	MX31_PIN_LD7__LD7,
 72	MX31_PIN_LD8__LD8,
 73	MX31_PIN_LD9__LD9,
 74	MX31_PIN_LD10__LD10,
 75	MX31_PIN_LD11__LD11,
 76	MX31_PIN_LD12__LD12,
 77	MX31_PIN_LD13__LD13,
 78	MX31_PIN_LD14__LD14,
 79	MX31_PIN_LD15__LD15,
 80	MX31_PIN_LD16__LD16,
 81	MX31_PIN_LD17__LD17,
 82	MX31_PIN_VSYNC3__VSYNC3,
 83	MX31_PIN_HSYNC__HSYNC,
 84	MX31_PIN_FPSHIFT__FPSHIFT,
 85	MX31_PIN_DRDY0__DRDY0,
 86	MX31_PIN_CONTRAST__CONTRAST,
 87};
 88
 89/* UART */
 90static const struct imxuart_platform_data uart_pdata __initconst = {
 91	.flags = IMXUART_HAVE_RTSCTS,
 92};
 93
 94/* MMC support */
 95
 96static int mxc_mmc1_get_ro(struct device *dev)
 97{
 98	return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_LCS0));
 99}
100
101static int gpio_det, gpio_wp;
102
103#define MMC_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
104			PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
105
106static int mxc_mmc1_init(struct device *dev,
107			 irq_handler_t detect_irq, void *data)
108{
109	int ret;
110
111	gpio_det = IOMUX_TO_GPIO(MX31_PIN_GPIO1_1);
112	gpio_wp = IOMUX_TO_GPIO(MX31_PIN_LCS0);
113
114	mxc_iomux_set_pad(MX31_PIN_SD1_DATA0, MMC_PAD_CFG);
115	mxc_iomux_set_pad(MX31_PIN_SD1_DATA1, MMC_PAD_CFG);
116	mxc_iomux_set_pad(MX31_PIN_SD1_DATA2, MMC_PAD_CFG);
117	mxc_iomux_set_pad(MX31_PIN_SD1_DATA3, MMC_PAD_CFG);
118	mxc_iomux_set_pad(MX31_PIN_SD1_CLK, MMC_PAD_CFG);
119	mxc_iomux_set_pad(MX31_PIN_SD1_CMD, MMC_PAD_CFG);
120
121	ret = gpio_request(gpio_det, "MMC detect");
122	if (ret)
123		return ret;
124
125	ret = gpio_request(gpio_wp, "MMC w/p");
126	if (ret)
127		goto exit_free_det;
128
129	gpio_direction_input(gpio_det);
130	gpio_direction_input(gpio_wp);
131
132	ret = request_irq(gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1)),
133			  detect_irq, IRQF_TRIGGER_FALLING,
134			  "MMC detect", data);
135	if (ret)
136		goto exit_free_wp;
137
138	return 0;
139
140exit_free_wp:
141	gpio_free(gpio_wp);
142
143exit_free_det:
144	gpio_free(gpio_det);
145
146	return ret;
147}
148
149static void mxc_mmc1_exit(struct device *dev, void *data)
150{
151	gpio_free(gpio_det);
152	gpio_free(gpio_wp);
153	free_irq(gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1)), data);
154}
155
156static const struct imxmmc_platform_data mmc_pdata __initconst = {
157	.get_ro	= mxc_mmc1_get_ro,
158	.init	= mxc_mmc1_init,
159	.exit	= mxc_mmc1_exit,
160};
161
162/* Framebuffer support */
163static const struct fb_videomode fb_modedb = {
164	/* 640x480 TFT panel (IPS-056T) */
165	.name		= "CRT-VGA",
166	.refresh	= 64,
167	.xres		= 640,
168	.yres		= 480,
169	.pixclock	= 30000,
170	.left_margin	= 200,
171	.right_margin	= 2,
172	.upper_margin	= 2,
173	.lower_margin	= 2,
174	.hsync_len	= 3,
175	.vsync_len	= 1,
176	.sync		= FB_SYNC_VERT_HIGH_ACT | FB_SYNC_OE_ACT_HIGH,
177	.vmode		= FB_VMODE_NONINTERLACED,
178	.flag		= 0,
179};
180
181static struct mx3fb_platform_data fb_pdata __initdata = {
182	.name		= "CRT-VGA",
183	.mode		= &fb_modedb,
184	.num_modes	= 1,
185};
186
187#define LCD_VCC_EN_GPIO	 (7)
188
189static void __init mx31lilly_init_fb(void)
190{
191	if (gpio_request(LCD_VCC_EN_GPIO, "LCD enable") != 0) {
192		printk(KERN_WARNING "unable to request LCD_VCC_EN pin.\n");
193		return;
194	}
195
196	imx31_add_ipu_core();
197	imx31_add_mx3_sdc_fb(&fb_pdata);
198	gpio_direction_output(LCD_VCC_EN_GPIO, 1);
199}
200
201void __init mx31lilly_db_init(void)
202{
203	mxc_iomux_setup_multiple_pins(lilly_db_board_pins,
204					ARRAY_SIZE(lilly_db_board_pins),
205					"development board pins");
206	imx31_add_imx_uart0(&uart_pdata);
207	imx31_add_imx_uart1(&uart_pdata);
208	imx31_add_imx_uart2(&uart_pdata);
209	imx31_add_mxc_mmc(0, &mmc_pdata);
210	mx31lilly_init_fb();
211}